From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
List of agreed-upon modifications and tests for vehicle components, including axles and wheels.
| Identifier | ExFiles\Box 29\1\ Scan077 | |
| Date | 25th September 1925 guessed | |
| -2- wobbles. As soon as this .940 lead worm has been tested and agreed to, existing worms should be scrapped. (7) In order to take out weight, as an immediate move it is proposed to do more machining on parts of the front axle than is done at present, especially the pivots and the axle itself. Instructions will be sent from WW; on this point. In the meantim it should be ascertained that all parts, especially forgings, are to the drawing dimensions. It was agreed to try the brake carrier in duralumin sheet, and it will be investigated whether an aluminium casting can be used for this purpose. (8) Front wheels to be set parallel instead of toed-in .250 if result of 10,000 miles test is satisfactory as regards tyre wear. (9) It is believed to be possible to reduce the angle of inclination of the pivot in the front view a small amount of existing axle parts. Instructions will be sent from RR. For future work it is intended to reduce this angle as much as possible. It is also intended to try the wheels 1" out of centre point. (10) It is important that Sales should advise customers not to have any wheel or type of rim which adds weight as compared with the standard wire wheel. It is understood for instance that artillery wheels are appreciably heavier than wire wheels, and are unsatisfactory from other points of view - (e.g. have been known to split at the welded seams.) DA{Bernard Day - Chassis Design} | ||